<template>
  <div class="icons">
    <swiper :options="swiperOption">
      <swiper-slide v-for="(page,index) in pages" :key="index">
        <div class="icon" v-for="item in page" :key="item.id">
          <div class="icon-img">
            <img class="icon-img-content" :src="item.imgUrl" alt="">
          </div>
          <p class="icon-desc">{{item.desc}}</p>
        </div>
      </swiper-slide>
    </swiper>
  </div>
</template>

<script>
export default {
  props: ['icons'],
  data: function () {
    return {
      swiperOption: {
        autoplay: false
      }
    }
  },
  computed: {
    pages: function () {
      var pages = []
      this.icons.forEach((item, index) => {
        var page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import '../../assets/varibles.styl'
  @import '../../assets/mixins.styl'

  .icons {
    width 100%
    height 0
    overflow hidden
    padding-bottom 50%
    margin-top .1rem

    .icon {
      position relative
      float left
      width 25%
      height 0
      overflow hidden
      padding-bottom 25%

      .icon-img {
        position absolute
        top 0
        left 0
        right 0
        bottom .44rem
        box-sizing border-box
        padding-top .1rem
        padding-bottom .1rem

        .icon-img-content {
          height 100%
          margin 0 auto
          display block
        }
      }

      .icon-desc {
        position absolute
        right 0
        left 0
        bottom 0
        height .44rem
        line-height .44rem
        color $darkTextColor
        text-align center
        ellipsis()
        max-width 1.4rem
        display block
        margin 0 auto
      }
    }
  }
</style>
